exam Maths Puzzle Numerical Ability

If w equals the sum of three consecutive even integers, then, in terms of w, what is the sum of the next three consecutive odd integers that follow the greatest of the three even i

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exam Other Question

2x+2y+3z=13
-3x+4y-z=5
5x-3y+z=2

solve a system of 3 linear equations in 3 variables by the addition method. I keep coming up with fractions for x variable. i must be missing something in one of steps.
2x+5>1